CONTAINS SPOILERS
How to beat the secret level in single player
in the first section of the level, it’ll be mainly platforming with some enemies. make sure to time your jumps and be careful. in the next section, it’ll be balloon popping. it can get pretty hard but just remember to switch rails and aim well. in the 2nd to last ones, you’ll have to work with little buddy and ride bullets and use soakers. in the last one, kill evil octolings.
