A game that I really enjoyed (more than The Rub Rabbits actually) ruined by one of the worst difficulty spikes I can recall in any game I've played that killed any fun I was having.

No, the Nightmare chapter isn't challenging, it's just tedious, frustrating and usually plain unfair. Having to go through one 5 minute long (pretty simple) minigame, followed by a 3 minute one that feels like it's random chance, all just to get A SLITHER of an attempt at an incredibly unfair BS boss that seems to go on for 5 minutes+ but can all come crashing down for you in the space of 10 seconds was so tedious and mind-numbing that it really made me genuinely angry. Agrovating difficulty spikes in casual games are one thing, but wasting around 8 minutes of my time to get another attempt at a boss that would likely need 20+ from me to get lucky enough to finish is blood-boiling. From what I know, the game maintains this difficulty until the end, which was the final nail in the coffin for me.

Merit points for the great time I had up until the end of the game, but I just couldn't stick with it for the sake of keeping my DS in one piece.