Arcade-style Sumo Battle Prototype

This is my submission for Prototype 4 as part of the Junior Programmer Pathway. I tried my best to design all the bonus features (harder enemies, homing rocket powerup, smash powerup & boss battle) myself, but I had to consult the solutions a bit for the hard level challenge. Controls: - WASD/arrow keys to move around - Move the camera view with the mouse - Press LMB (left mouse button) to perform a smash attack (provided the smash powerup is active) Info: This is an arcade-style sumo battle game. Waves of enemies spawn endlessly, each tougher than the previous. Your job is to survive as long as possible. Be careful of the boss enemy which spawns every 3 waves! There are 3 kinds of powerups to help you - Knockback (yellow, pushes enemies away on collision), Homing Rockets (blue, shoots attack projectiles in all directions) and Smash (pink, a highly powerful one-time attack that blows away enemies within the explosion radius).