This translation is intended for people who already know English and are learning Japanese. It is not intended to be used to learn English, because the sentences in English may use strange or awkward wording in order to illustrate the vocabulary and grammar of the original Japanese.
Game title
Japanese
Rockman 2 Dr. Wilyの謎
English
Rockman 2: The Mystery of Dr. Wily
This could also be read as "Dr. Wily's Mystery".
Intro
Japanese
２００Ｘ年― Ｄｒ．ライトの生み出した スーパーロボット ロックマン によって ナゾの天才科学者Ｄｒ．ワイリーの野望は阻止され 世界に平和が よみがえった。
English
In the year 200X, thanks to Dr. Light's super robot Rockman, the mysterious genius scientist Dr. Wily's ambitions were thwarted and peace was restored to the world.
Japanese
しかし、世界征服をたくらむ Ｄｒ．ワイリーは、再び ロックマンに戦いを挑むべく、新たに造り出した ８体のロボットを 送り出したのである・・・。
English
But Dr. Wily, who is plotting world domination, sent out eight robots who are challenging Rockman to a battle once again.
The comma after 挑む is not necessary here, but was probably written to indicate that the sentence had not ended (since there is a pause at that point in the original game).
Bonus content - Can't Beat Air Man
Just because the wiki's about games doesn't mean we can't have fun with the concept. Here's a translation of the song "Air Man ga Taosenai", also called "Can't Beat Air Man" and similar names.
Japanese
気がついたら 同じ面ばかりばかりプレイ
English
When I notice I've been playing nothing but [this] screen
TODO - 面 = screen, area, what?
Japanese
そしていつも同じ場所で死ぬ
English
And I always die in the same place
Japanese
あきらめずに消える足場に挑戦するけど
English
Without giving up, I challenge the disappearing steps
足場 literally refers to a place for your feet. In this case it's referring to the game's infamous disappearing blocks. He could handle them if he had Item No. 2, but he needs to beat Air Man for that, which he can't do.
Japanese
すぐに下に落ちるよ
English
I fall right down
Japanese
English
If I had Item No. 2, I could easily reach the other side, but
Japanese
何回やっても何回やっても
English
No matter how many times I [try to] do it, no matter how many times I [try to] do it
The も here combines with 何回 to convey the idea of "no matter how many times".
Japanese
エアーマンが倒せないよ
English
I can't beat Air Man
Japanese
あの竜巻何回やってもよけれない
English
No matter how many times I try, I can't avoid that tornado
Japanese
後ろに回って撃ち続けても
English
No matter how many times I get behind him and keep hitting him
Japanese
いずれは風に飛ばされる
English
Eventually I get blown off into the wind
Japanese
タイム連打も試してみたけど
English
I even tried rapid-fire pausing, but
Japanese
竜巻相手じゃ意味が無い！
English
With the tornado as my opponent, it's meaningless
Japanese
だから次は絶対勝つために
English
That's why, in my next attempt, in order to win...
Japanese
僕はＥ缶だけは最後まで取っておく
English
I'll save up just the E-Tanks until the end
TODO - exact role of だけ here
