Bigger Blast is the second Path 1 upgrade for the Mortar Tower in BTD5. It allows the Mortar Tower to create larger explosions. It costs $600 on Medium. In BTDB Mobile, it costs $400.
In BTD6, it is the first upgrade of Path 1. It costs $500 on Medium. Just like in BTD5, it increases the blast radius from ~30 to ~45. It also now increases pierce from 40 to 45.
Bigger Blast upgrade in BTD5
Bigger Blast icon in BTD5
Mortar with Bigger Blast upgrade
Bigger Blast upgrade icon in BTD6
Instamonkey for Bigger Blast
- The official art of the upgrade is that the monkey controlling the tower looks crazy.
- The official artwork show the Monkey looking a butterfly while the cannon shoots a big explosion.