A very big thank you

ok sorry have passed the transporters the blue ones and have gone to the arrow where there is a chomper inside. I don't have a key? to get to the star thanks

I am in the cave that's looks red.passed the yellow block.I don't know what to do please help

what do I do once I've gone into the cave that's red?? there is a critter but I don't have a key please help.