Treacherous Halls

Coro Coro Castle is a promotional E-Reader level for Super Mario Advance 4. Much of the level consists of stomping enemies over spikes to cross them. Many Piranha Plants also appear, as well as two Flurries, one of which has to be ridden to collect an Advance Coin and also a 1-up. Boom Boom is fought at the end of the level.

New Level Elements

 * Flurry