>>725622453 (OP)
It feels like they thought they had to cram in as much content as possible to justify the $40 pricetag and in doing so they put way too much filler.
There was 0 need to put as many gems as they did, specially the three different wumpa fruit gems per level.
The n.verted levels were a thing that could have worked better for one single level in each stage, instead you're asked to play the whole game again. The only good thing about those levels was they actually changed the location of the hidden gem.