Fixes: Slight optimization to render distance (player sprite should move smoother), small optimizations to prevent stuttering, fix to misaligned smoke effect

Changes: Added Full screen option (should help with possible stuttering due to enabled vsync, but outside of supported resolutions will probably draw ui elements incorrectly).

New Content:

New enemies: small tanks appear in the mid-game, revenge fighters become replaced with a more powerful version towards the end game, new item: turbo engine available in the early-mid game