Apparently, you can play Dharma Doujo on archive.org in your web browser, which is very cool.

archive.org runs the game using MAME, and the default controls are:

• 5 Insert credit for player 1
• 6 Insert credit for player 2
• 1 Start Game
• P Pause Game
• Left Ctrl Player Button 1
• Arrow Keys for joystick movement

MAME controls and options can be configured using tab.