All the action from the Pool B match in Townsville.
Latest action appears first - scroll down for earlier news.
Final score: Japan 11-32 Scotland - Scotland are flattered by the scoreline after making far too many elementary mistakes against tenacious opponents.
79 mins: Simon Danielli marks his arrival with a try - latching on to a kick in behind the Japanese defence and kicking the ball on before grounding it. Gregor Townsend slots over the conversion from close range.
Japan 11-32 Scotland
78 mins: Simon Danielli gets a late run-out for Scotland, replacing Chris Paterson.
75 mins: Simon Taylor crashes over for the fourth try, which will give Scotland a bonus point, after a laborious, stuttering passing move as the Japanese show signs of fatigue. Chris Paterson again misses the conversion.
Japan 11-25 Scotland
72 mins: Gavin Kerr replaces Bruce Douglas for Scotland.
66mins: Simon Taylor's powerful run ends with a speculative pass ending up in the arms of Chris Paterson via a deflection off a Japan player and the winger crosses the line for Scotland's third try. Paterson's conversion attempt is skewed wide of the mark.
Japan 11-20 Scotland
64 mins: Scotland throw on Ross Beattie and Gregor Townsend.
63 mins: A Gordon Ross kick is charged down causing concern near the Scotland 22, but Tom Smith is on hand to smother the ball safely.
57 mins: Kenny Logan puts the Japan defence under pressure with a some great kicking on the run and slides over the line with the ball but, after consultation with the video panel, a knock-on rules out any score for the Scots.
55 mins: Scotland replace Jon Petrie with Martin Leslie.
54 mins: Japan move the ball from one flank to the other with pace and skill to allow Hirotoki Onozawa to plunge over the line for a well-deserved try. Substitute Andrew Miller misses the conversion.
Japan 11-15 Scotland
49 mins: A good jinking run from winger Kenny Logan sets up a period of pressure near the Japanese try-line but poor passing again proves Scotland's undoing.
45 mins: Tom Smith and Jason White combine well to break deep into Japanese territory but the promising move breaks down with a stray pass.
42 mins: Scotland make a mess of two line-outs at the start of the second half - gifting possession to Japan.
Half time: Japan 6-15 Scotland
39 mins: Keiji Hirose is just short with a long-distance penalty kick after Scotland are penalised for going over the top as the Japanese end the first period strongly.
36 mins: Another great defensive tackle, this time from Ben Hinshelwood, prevents a Japanese score.
35 mins: James McLaren and Kenny Logan combine to stop a promising run from Yukio Motoki just short of the try-line.
31 mins: A fantastic burst from Chris Paterson results in a scrum in front of the posts. The Japanese stray offside and Paterson has an easy kicking job from close range.
Japan 6-15 Scotland
29 mins: The Scots are put on the back foot by some impressive running from Japan but hold firm with some crunching tackles.
27 mins: Scotland are penalised for holding on to the ball too long but Keiji Hirose's long penalty kick fails to find the target.
22 mins: Andy Craig strays offside and Keiji Hirose slots over another excellent penalty kick.
Japan 6-12 Scotland
18 mins: After good work from Simon Taylor and Scott Murray, Stuart Grimes dashes over for Scotland's second try. Chris Paterson misses the conversion.
Japan 3-12 Scotland
16 mins: Keiji Hirose sees an ambitious drop goal attempt drift narrowly wide of the posts.
14 mins: Bruce Douglas is caught offside and fly-half Keiji Hirose strikes the penalty well.
Japan 3-7 Scotland
10 mins: Both teams are guilty of some sloppy handling as the game goes through a scrappy period.
5 mins: After a period of sustained pressure, Chris Paterson finds room to sprint over the line for the games's first try and the same player successfully converts.
Japan 0-7 Scotland
2 mins: The Japanese are penalised from an early scrum but Chris Paterson fails to find the posts with his penalty kick.
1105 BST: Gordon Ross kicks off Scotland's World Cup campaign.
The temperature at kick off time in Northern Queensland is 26 degrees, with a warm wind blowing in off the Coral Sea not shifting the heavy humidity.
Japanese coach Shogo Mugai turns down the chance to have a one-minute break in each half to allow players to take on water.
Scotland prepare for their second World Cup meeting with Japan, having won 47-9 at Murrayfield in 1991.
Scotland: B Hinshelwood; C Paterson, A Craig, J McLaren, K Logan; G Ross, B Redpath (capt); T Smith, R Russell, B Douglas, S Murray, S Grimes, J White, S Taylor, J Petrie.
Replacements: G Bulloch, G Kerr, R Beattie, M Leslie, M Blair, G Townsend, S Danielli.
Japan: T Matsuda; D Ohata, R Parkinson, Y Motoki, H Onozawa; K Hirose, T Tsuji; T Ito, T Miuchi (capt), N Okubo; A Parker, H Kiso; C Nam Oh, Masao Amino, Shin Hasegawa.
Replacements: M Yamamoto, M Sakata, H Tanuma, Y Watanabe, Y Sonoda, A Miller, T Kurihara.
Referee: Stuart Dickinson (Australia)