This is a fun little solo game, like you mentioned in your desc. I imagine the levels were randomly generated (something I havent touched yet lol) and no doubt made making levels easier. Its charming and entertaining, the sharky and palp lines, the varying skins from Zoey to Simon, the snow, the stupid amount of harpoons, how you can just throw sharky and he gets dozens in him trying to get gifts- Its got attention to detail in all the right places to make it charming.
It does get repetitive though, and most levels can be beaten by rushing the present before the first wave of harpoons could fire. The game would probably benefit from occasional new elements and something to prevent instant victories before the harpoons come in. Though the times when I was trapped between walls and walls of harpoons were pretty funny.
I'm genuinely exited for your next game, best of luck!