上書きする

to overwrite (うわがきする)

-- save file, data

シューティングゲーム

shoot'em up, shmup (shuutingugeemu)

素早さ

agility すばやさ　(subayasa)

速度

speed そくど (sokudo)

合わせる

to overlap あわせる　(awaseru)

--There are a lot more meanings for this, but this is the verb you use for selecting something with a cursor: Ｘにカーソルを合わせる

受ける

to receive うける　(ukeru)

--e.g. damage

与える

to deal (give, present, etc.) あたえる　(ataeru)

-- e.g. damage