Just wanted to let you know about a few island-specific bugs I've run into:
1) On Time Tangled Island, the stopwatch appears in the bottom corner of the screen for easy access, but it's not clickable. You can still use it by navigating to it in your items, so this isn't game-breaking or anything, but I thought I'd mention it.
2) On Super Power Island, every time I defeat a villain and go to handcuff them (with the exception of Copy Cat), I get a spinning wheel of death and the game refuses to progress. I have to quit out and restart each time it happens. Thankfully, it at least saves my progress and counts the villains as defeated, so it's not technically game-breaking, but it's still very frustrating.
3) Also on Super Power Island, I'm not able to complete the fight against Sir Rebral. That's because the second phase of the fight requires you to push a large rock across the ground, but the rock isn't currently moveable; my character strains to move it but can't get it to budge. This issue is game-breaking — or island-breaking, rather — because it prevents me from finishing the island.
I may keep posting more island-specific glitches in this thread as I run across them, or I could create new threads for each if you'd prefer. Thanks!