Could there be a system where you have to capture them first like a tentacle pit trap
Yes, that is the plan. For the full game I have a dungeon defense planned, but I might do something different for this demo.
A tentacle pit sounds interesting, do you know any other game that has a similar mechanic I can look at?
Probably something like tentacle locker/similar to it or Tentacle Fall Trap by ST Hot Dog King would be a good reference for mechanics
Thanks, will check them out. Played tentacle locker long time ago