It may not be intentional, but here's a small quirk I found about the Bounce Traps:

When a Bounce Trap is set to bounce things directly into the Action Row, anything that steps over it immediately dies - no input from the player required. The sound glitches out as if the enemy went through, but no damage is dealt - in fact, the Combo is incremented and you are given points as if you hit a Super Crit Perfect!

This has some potential to be used for fakeout big hits - just make sure the Bounce Trap(s) is(are) fully visible and clear; so as to not trip the player up too much. It WILL take some learning and/or a warning in the Workshop file's description, however.

1. Create a Bounce Trap.
   Make sure it's facing DOWN along the timeline - as in, into the Action Row. Adjust the Trap's lifetime as needed.
   
2. Move the Trap's Spawn Distance marker up so it's just below the Trap.
   This will make it spawn in the row right above the Action Row.
   
3. Plop down some enemies!
   That's it! Those enemies will die right as they cross the Bounce Trap, no input required. Of course, though, the enemy has to be able to interact with the Trap, so Bats, Harpies and Wyrms are out of the question.

...Though, maybe by the time BYG updates the game again, this will turn into a normal input... (Please don't do that, this is actually pretty cool)