Classic 2 Pack is the 5th track pack for the mobile version of Bloons TD, which is a mobile version of Bloons Tower Defense 3. This pack, along with all 3 tracks, is initially locked in the mobile game. It is unlocked when the player beats 9 levels in the first 4 track packs (Classic 1 Pack, Racing Pack, Beach Pack, and Snow Pack). This pack features Track 3, Track 5, and Track 8 from the online version of Bloons Tower Defense 3.