One Key Punch

One Key Punch is a small fighting game for two players. 

The fighters are identical in stats.

Player 1, on the left, controls his character with the key F. Player 2, on the right, controls his character with the key J.

The upper bar is the health, and the lower one is the "shield".

By holding the respective key, you enter a defensive position, which eats your shield away and accumulates power. Once your shield energy is depleted completely you remain stunt for a while, vulnerable to attacks. On releasing the key, the character punches, delivering the power accumulated as damage.

This game was done as part of the Game Maker's Tool Kit Game Jam 2019 under the theme "only one". The idea was a fighting game that controls with only one key. Incidentally, this was also done by only one person and in only one day.

All feedback is appreciated.