Actually, I think I know where that move came from. Some people might not know this, but to get to an emerald stage on Flying Battery zone, you have to push some of those spikes over far enough to access a trap door that'll lead you to the ring to the bonus stage. Reason for stating this? I think I might know how they'll continue their fun adventure. *watch, someone's gonna comment about how accurate the word "fun" is*
@Alaric Skywalker: Two comments on that. First, I'll admit that I was one of those people who didn't know about the pushable spikes until years later (in looking up entire-level maps for Flying Battery). Second, you'll just have to wait for the comics that follow to see if your intuition was correct.