The best part about Unbox are the references to other platformers and games in general.
Unbox as a game itself, can be reduced to a game that balances a protagonist with akward control, with a simple gameplay and barely any challenges.
If you are one of those completionists, with the urge to find 100% of everything, Unbox might entertain you with its open world. If you are not, my rating is 5/10.