If I'm scoring it as an "I'm learning to code and I've chosen to try to copy Piñata Go Boom specifically" project, I'd give it somewhere around C-/B+ and say...

"good job getting the core functions implemented; at a base level most of the game seems to 'work' as intended/expected. It'd need a lot more work before publishing, the controls feel clunky and imprecise and game balance is virtually nonexistent, but we're grading you on code, not design"

...scoring as a game to play, though? As you've probably guessed, I'd suggest skipping it.