Few UI tips:
— tabs dont behave this way, it's unnatural. Dont change their position every time.
— walking should be fixed to buttons: clockwise=→; cc=←.
— "esc" should cancel aiming.
— during battle i want to see not just total health
— but amount of team members. You can split health bar in parts.
— blinking mines are not contrast enough, hard to see them being active.
Feature tips:
— Ability to select team color
— Jumping. Maybe: ropes, space rockets, flying sorceress, jetpacks.
— Melee weapon, ∞ uses. Lightsaber?
— Level editor would be handy, and it looks like pretty easy to implement — levels aren't complex.
— Multiplayer means 4 players, not two, right?
— Different enemy teams dont seem to be enemies to each other.
— Tiger Woods special: one 200 hp vs max players medium/low hp. Maybe against pink ones. Yknow :-D
— Maybe: planets enhancing powers. Like: planet +5 hp (each turn heals), etc.
Mics:
— Keep up the awesomeness level, yo.