Coaster Clash 2k99 - Roller Coaster Defense

Coaster Clash 2k99 is a Coaster-Builder/Tower Defense/Bullet Heaven hybrid with a genuinely endless amount of depth, and a skill ceiling that I currently don't know how high it reaches. In CC2k99 you build roller coasters, ride them, defend your scrap, and see how efficiently your coasters can get XP. Whose going to be first to level 1,000? Whose going to have the highest XP/hour in survival mode?