Buy Rank 31

==Buy Rank 31 is a premium upgrade for BTD4 and BTD4 expansion. It costs 1000 Mochi Coins. It immediately increases your rank to rank 31 without having to pop any bloons. It gives you all the towers, level 4 upgrades and game modes too. ==

Trivia

 * In the expansion, this upgrade dosen't give the level 4 upgrades for the Spike Factory and Dartling Gun