That One Level: Levels 207 and 215 in World 7 are considered to be one of the hardest levels in both the campaign and legendary mode.
- 205 has 3 entries and exits with no connected pathways. The enemy roster consists of several waves of Gem Eyes and ETA Sentries. The former can easily kill your heroes while the latter disables the powerful Gamma Sentries and Rho Throwersnote In Legendary Mode, Rho Throwers are disabled, forcing you to use high damage dealing heroes or slowly kill the enemies with the Gamma Sentry or troop towers. Coupled with the enemy combination faced above, you'll need a lot of items and skill to perfect the level. Not even having high ranked heroes can help make this level a cakewalk.
- 215 ups the challenge by having 4 separated entries and exits. Fortunately, the lanes are placed in a way that allows you to create mini-chokepoints. However, this doesn't negate the difficulty in any way as you'll be dealing with hordes of Demonic Spiders. Coupled with the fact that the disabled Rho Thrower was your most used source of damage against both ground and flying enemies, the latter will often result in your Game Over unless you bring in anti-air support.
