I finished the game, finally ! The fight against Smithy was epic, I really enjoyed it but man, that ending is so depressing...
When Geno leaves, damn, that was sad. I remember someone saying that it felt like Mario and his friends were never going to see Geno again and that's what i felt. The way he leaves, seeing him writing "the end". I don't know, that was a beautiful ending but really sad at the same time.
The game was awesome, even though there's some minor flaws (some mini games, the moments with platforming and the Bowser's castle which was way too long). Mallow is really fun and has a pretty good character development. Booster and Dodo were really funny ! But Geno is just too cool, it really feels like this is his adventure even though this is a Mario game
After this ending, i want Geno to make a comeback more than ever !