Keep in mind that this is a very hesitant recommendation. Adventures of Shuggy is a simple but challenging platformer that has a huge amount of levels for you to work through.
The controls are solid, sometimes feel a touch floaty but it's quite easy to adapt to. There's a good 20 to 30 levels per room, and you need to complete at least two-thirds before you gain access to the boss level and then unlock the next room. Each level has a gimmick associated with it; being able to rotate the entire level or sections of it, clones that spawn and carry out what you did within a specified time limit, rope machines that allow you to swing down and even up through levels, embiggening/shrink potions etc. They keep it fresh and as you advance you're expected to tangle with more complicated variants.
On a personal note I just got sick of the game; I loathe time-clone platforming and I am particularly awful at it ('sup Gateways!). It's probably best played in short bursts rather than trying to slog your way through in a single shot. There are better platformers around but this is certainly worth picking up on sale if you've run out of options.