Flight of the Bumblebee the 243rd stage of Piano Tiles 2. The stage can be purchased at a cost of 20000 coins, which makes it to the most expensive stage in the game. Along with Fur Elise, Canon (Rock) and Turkish March, it is among the first few purchasable stages in the original games, being the fourth and last stage of the final four. The fact, that this stage is incredibly fast combined with the fact that there are almost only single tiles, this stage is for many people the Hardest Song in Piano Tiles 2.
This level doesn't contain double tiles. There is only a few holding tiles in the middle and in the end. When played correctly (full holding tiles) the length of the piece is 704.
This piece is one of the hardest stages in the entire game, due to long parts without any breaks. Although there is a small help: when you're reaching ~400 score, there are two long holding tiles, perfect for taking quick rest. Then you should be prepared for some more single tiles till two short holding tiles at ~470. After those you're just heading straight towards the finish in another stream of single tiles.
If you're trying to get 3 crowns, you should also rest a bit in the finish - there are some holding tiles.