ginger island

[kerloi]

how do you enter the cave here? no, not the volcano. the cave at upper side near where professor snail is found. also, the cave with a tiger like figure, what's that?

 

[Ereo]

You go inside the volcano, but walk left on the lava instead of crossing over.

what tiger like figure do you mean? Do you have a screenshot?

 

[Mr. Vampire]

I think this cave might be what you're talking about, if it is, the crystals are like Simon says buttons, some will flash, you hit the ones that did in order when they're done, then repeat, I believe there's 5 rounds, and when you finish, there's a prize