Fantastic beat 'em up with perfect difficulty. Astro Boy controls well and his handful of moves are extremely fun to use and pack a punch when you attack enemies. The boss fights are really fun too and will test your skill and require you to get good if you want to complete the game. However, accessing the final level is rather confusing and I didn't enjoy that you needed to talk to specific characters in a specific order. It's what deterred me from completing this game for years as I didn't even know it existed when I first played it as a kid. That being said, it is still a fantastic game and easily the best game on the GBA.