The PC Genjin/Bonk arcade game is finally playable with the current
revision of MAME.

The game is pretty crappy though.

You can't spin through the air, you can't jump up underneath enemies
to bonk them and the rest of the gameplay is slightly different
(yellow flowers automatically spring you high).

Even still, it could be a decent game like this. But instead, there
are a bunch of mini levels and you pick any one you want to play.

After 'beating' any 3 'levels' you get to pick a Boss to fight.

The Bosses and levels are more cheap than challenging because of the
handicapped gameplay.

The game isn't much more colorful or detailed than the home versions
and there is basically just 1 moving background.

Also, the bonk sound is the exact same as the turtle kicking/killing
sound from Super Mario World.

Its still cool to finally play it after all these years.

But I don't think that I would've been too impressed if it had come
out back in the day.