Jumping! Mario loves it, Link hates it and spiral knights doesn't have it. But what if there was a mechanic that could suit the clockworks without you falling off the stage in a panic? The answer, seesaws! Imagine a seesaw that is either mechanic or a natural seesaw. You could have one player stand on one end and shoot, stab or blow up a button on the other end that shoots the player up high enough to reach a hard to grab ledge. The jump would be fixed so all the player needs to do is click once or hold that clicker down just one time just to get launched into a new area of that depth. This could create new puzzles in the clockworks and even new ways to explore them.
In addition to this we could also think of the jump animation and how accessories interact with this animation! Wings would sale the player to the ledge, tails will plop up high and flop to the ground when the player lands; they could even have auras explode with particles to emphasize the jump. This could give flare but in the end its just one more reason to want to get accessories.
Mmm... I dunno. This seems pretty gimmicky without adding much in the way of new gameplay experiences.