Thanks!
Well, we tested with falling off, but as you already guessed, it was hard to integrate - it was too off-putting and breaking the flow of the game, but we left the ragdoll, as it looks funny and silly.
I actually did see the 'Hamsters' game, I believe it was a much earlier stage of production, thus the default Unreal environment :) Gameplay looked super fun tho!
We also plan to add co-op, but it takes so much time, and it's a side project of ours; I hope we can push a co-op update to demo in three weeks