Blue arrows are for Snowballs and DSTs, Yellow arrow for DST only. Upgrade App towers and Buff Beam, then tower boost (Doesn't need good stats)
Hint 1: Put auras here first wave. Move them to core with Jester after other cores die.Ensure Jester has negative tower range.
Hint 2: The rough location of the two buttons to open the DDR game. You will need a good score on it (150~ should do)
Hint 3: The door to the DDR game.