Algodoo

"A" and "D" to move.
"W" to jump.
"S" to toggle gun (2 shots per second, 1 DM)
Mouse to aim.
"Shift" to fire special weapon (10 second cooldown, 10 DM)
Mouse to aim. Velocity based on position of mouse.
Special is ready when "gun" turns pink as indicator.

Targets provided:
Hexagonal ground, 10HP. Liquifies on destruction.
Target with 100HP and HP display. Liquifies on destruction.
No enemies because decent pathfinding is beyond me

Note: bullets can be blocked by liquid.