Press 0 on the Num Pad to place bombs.
Note that both Duel and Level Play modes start with two players by default, so don't forget to set the number of players to one to play solo games.
Arcade, 1989Shareware (installed), Shareware, Shareware
Arcade, 1996Shareware (installed), Shareware
Arcade, 1983Playable demo
Arcade, 1997Full version (installed), Full version
Also known as PacPc