Oh, it's the English version. The Japanese version is *LESS* forgiving than this one. Especially Nise-Twinbee. If you get anything less than *100% completion*, that boss is easy, but if you manage to get everything before you reach it, Nise-Twinbee will have some significant upgrades: 1. *TwinBee Mode:* Throws *THREE* bombs instead of one. 2. *WinBee Mode:* Faster Dash Boost, and halfway through the battle, will Dash towards you in quick short bursts. Stay against the far walls to avoid getting caught off guard. 3. *GwinBee Mode:* Even more faster charge up time for its punches, and halfway through the battle, it will throw multiple energy balls per charge, instead of one ball per charge. 4. *Improved Armour:* With the exception of a Backfist (Y+opposite direction), all other attacks do only about 1-2 hearts of damage to Nise-Twinbee. 5. *Improved Speed:* It's also faster now.