Ok but an honest opinion
Kirby could beat bossfights
Because there’s canonically 6-7 kirbys and they can inhale inklings and Kirby has killed several powerful beings bet
honestly tighten was an underrated villian but yes (also ive been thinking, we should make shaggy the 2nd most powerful being to perserve the old bossfights lol)
Anyway, collector would probably do the same. If the chaos emeralds work in the same way as they did in frontiers collector just has to wait until sonic runs out of time, then he would crush each of the emeralds one by one.