The second screenshot is the first world from Donkey Kong 64 and the 3rd of 4th pic is of a level from Conker's Bad Fur Day. Reported for plagarism

Thanks for your concerne, but I can assure you that every asset in this game is created by me or (in case of music and sounds) licensed.

So let me see if I've got this right, Siactro makes references to (but doesn't steal actual assets from) various platformers and what not from the N64 era and your first thought is plagiarism?, I'd hate to see how you'd react to fan games that do actually use legitimate assets ripped from games