Here's just another Bloons Tower Defense 4 Expansion walkthrough for Track 1 Hard mode showing amazingly gameplay without lives lost and without premium upgrade. BTD Expansion 4 is one of the most addicting tower defense games out there.Bloons Tower Defense 4 Expansion walkthrough Track1 on Hard mode:
Next one shows how to unlock the supernatural specialty (includes super monkey and wizards).
The BTD4 Expansion Sun God Cheat (only works on normal mode).