se class object handles update, physics, collision, rendering, etc</li><li>Engine helper classes and functions like Vector2, Color, and Timer</li><li>Super fast rendering system for tile sheets</li><li>Sound effects audio with zzfx and music with zzfxm</li><li>Input processing system with gamepad and touchscreen support</li><li>Tile layer rendering and collision system</li><li>Particle effect system</li><li>Medal system tracks and displays achievements</li><li>Debug tools and debug rendering system</li><li>