Board Thread:Game Suggestions/@comment-35237029-20180408001815/@comment-35237029-20180408014818

Some towers can be unlocked by beating missions:

Engineer: Start with 2 free Engineers, get 1 free every 5 rounds, they are only buildings allowed, but all upgrades are unlocked for this special mission only

Cash amount halved but all bloon levels 1 level higher

Number of sentries on screen is displayed in a corner somewhere. Try to get to 150 sentries.

Buccaneer: All-water version of The Rink, now must beat Easy mode with buccaneers and all upgrades unlocked

Sub: Same as Buccaneer except with all Sub upgrades unlocked as well, and difficulty changed to Hard