Thank you for playing! Did you mean that the player would clip through the gray clones? That is intentional, if a clone dies mid air or without any valid surfaces (ie non-gray surfaces and platforms that can be active / inactive) then the clone will become gray and you'll clip through it. You can still make a clone staircase by just keeping your clone alive for longer though, which I tried to do in Level 2! Though there weren't any explanations in the tutorials so I understand, if I had more time I would've made more levels to explore the mechanic. Thanks for the honest feedback too!