Joe Cokanasiga scored a debut try as England overcame an almighty scare to fight back and beat Japan 35-15 at Twickenham.
Eddie Jones challenged a much-changed team to "smash" his former side, but England were in danger of being humiliated when they trailed 15-10 at half-time on Saturday.
An enterprising Japan team were great value for their lead, Ryoto Nakamura and Michael Leitch scoring first-half tries, with England disjointed after Jones made 11 alterations to his starting line-up following the defeat to New Zealand.
Danny Care's early try had put England in front but they lacked cohesion in a poor first-half display before raising their game following the introduction of Owen Farrell at the interval.
Mark Wilson's first international try put them back in front, then Cokanasiga and Dylan Hartley went over as England finally clicked into gear with a clash against Australia to come next weekend.
George Ford, captain for his 50th cap, scored 12 points with the boot and Elliot Daly was on target with a long-range penalty in a first half which Japan dominated, but they were ultimately emphatically beaten.
England took just three minutes to take the lead with a blistering counter-attack, Daly, Cokanasiga and Jamie George combining down the left flank and Care darting away for an opening try after Yu Tamura failed to find touch.
Japan applied sustained pressure in a brilliant response, Tamura getting them on the board from the tee after they had opted against shots at goal in favour of set-pieces when scenting a try.
The Brave Blossoms were rampant and capitalised on their numerical advantage with George in the sin-bin for going off his feet after a careless pass from Care was intercepted.
Nakamura took a fine pass from Fumiaki Tanaka to burst through and go under the posts as England were caught out from a scrum and although Daly levelled with a long-range penalty, Japan were back in front with a second try just after the half-hour mark.
It was again a combination of inventive attacking and poor defending which gave the underdogs a half-time advantage, Leitch ploughing his way through Care and stepping past Daly all too easily before touching down after Chris Ashton was withdrawn due to injury.
Jones introduced Farrell at the break and Ford reduced the deficit to two points with his second penalty.
Japan were finally undone for a second time, Ford throwing a dummy and feeding the onrushing Wilson, who finished off a slick move just before the hour-mark after Care got rare quick ball.
Ford added the extras and was on target with another penalty before Richard Wigglesworth picked out Cokanasiga with an inviting pass, and the powerful young wing shrugged off a couple of tackles to score on his international bow.
Hartley dotted down when Japan failed to halt a driving maul to add gloss with Japan fading after causing England so many problems with a vibrant first-half display.
|Ronaldo to start as Allegri aims to avoid Champions League big guns|
|Odriozola: I´m in love with Benzema, he´s the best number nine in the world|
|Vikings fire OC DeFilippo after loss to Seahawks|
|Marcelino suggests Valencia open to Batshuayi departure|
|Bottas to make rally debut in title-winning M-Sport Ford Fiesta|
|Kovac dismisses Pavard speculation|
|Yaya Toure leaves Olympiacos after just five appearances|
|Riise challenges Liverpool to banish Champions League disappointment against Napoli|
|We rallied around it - Durant on Green confrontation aftermath|
|Valencia ´p****d off´ with Fellaini´s controversial Young Boys winner - Soler|
|More must be done to combat racism at Premier League grounds – Chalobah|
|Napoli will not sack ´big signing´ Ancelotti if they miss Champions League qualification, says De La|
|Guardiola not interested in ´exceptional´ Saul|
|Shai gives Windies hope with thrilling ODI run chase|
|Ten Hag unsure whether to risk Ajax stars against Bayern|
|Erasmus to work with Bulls as Springboks assist Super Rugby sides|
|Paul Gascoigne pleads not guilty to sexual assault|
|Joshua is ´begging´ for unification fight, claims Wilder|
|Silva, Fernandinho add to Guardiola´s injury woes|
|Hosszu storms to 14th gold, Seto smashes Le Clos´ world record|
|Raheem is an incredible human being - Guardiola rallies behind City star Sterling|
|Sexton pens IRFU extension until 2021|
|Ajax boss Ten Hag can do big things, says Bayern chief Rummenigge|
|He´s good at basketball – Kerr running out of superlatives for Curry|
|Green thrilled to make Warriors return in victory over Timberwolves|
|Madrid squad great and humble - Solari responds to Ronaldo|
|Langer unsure what to expect from Perth wicket|
|Fournette subjected to alleged racial abuse in Titans loss - Marrone|
|Better and better - Mbappe hails Neymar link|
|It´s the end of one of the best movies you could ever see - James pays tribute to retiring Wade|
|NASA invites Curry to see moon rocks|
|No plan B for LaLiga Miami game after Barcelona withdrawal|
|Messi´s English haul, Neymar eyes hat-trick record - Champions League in Opta numbers|
|LeBron trumps Wade in last dance, Curry scores 38 points|
|Seahawks secure dominant win over Vikings|
|Iniesta visits Messi and former club Barcelona|
|Drake makes plea for ball thrown into stands after Miami miracle|
|´Toughest pretty boy I´ve ever met´ - Langer dismisses Paine concerns|
|Van Dijk says Liverpool can challenge for double ahead of Napoli decider|
|Hazard: I´ve always loved Real Madrid|
|Yankees interested in Machado, not Harper - Cashman|
|Warriors´ Curry believes moon landing was faked|
|76ers star Butler suffers strained groin|
|Brady: Patriots still have a lot of football to play|
|´No one died´ - Belichick´s message to Patriots after stunning loss|
|Silva lauds Digne after stunning free-kick|
|Aduriz joins Messi, Ramos in LaLiga history books|
|We have a plan - Ravens coach Harbaugh prepared for Flacco return|
|´It´s difficult to accept´ - Gracia calls for introduction of VAR|
|LaLiga press on with overseas match plan despite Barcelona withdrawal|
|PSG open Coupe de France defence at fifth-tier Pontivy|
|Hazard backs Sterling as Neville reveals England star´s Euro 2016 concerns|
|Everton 2 Watford 2: Digne salvages draw with 96th-minute free-kick|
|Barcelona could ´steal´ Kane, says Pochettino|
|Oakland Raiders fire general manager McKenzie|
|Struggling Villarreal appoint Garcia Plaza as Calleja successor|
|Warriors assign Cousins to G League team|
|Barcelona pull out of plan to play LaLiga game in Miami|
|Pochettino to keep an eye on Inter when Spurs face Barcelona|
|Pochettino confirms Walker-Peters set to start against Barcelona|
|Denver Nuggets add free agent Young|
|Topping Group A no magic wand for an easy knockout draw, says Simeone|
|The cake has been made, now we need the cherry - Ancelotti targets repeat at Anfield|
|Lloris braced to face ´one of the best in history´ in Messi|
|Tuchel expects Neymar to face Red Star|
|Foden signs Manchester City deal to 2024|
|It happened to me! - Valverde laughs off Dembele timekeeping|
|´Projecting´ an Argentina return? Messi met with AFA president and Scaloni|
|Erasmus expects to leave head coach role after World Cup|
|Chelsea issue suspensions pending investigation into Sterling incident|