Only the current version so far — new entries appear as the game ships updates.
Mail Boy Adventure is an arcade game by Ariya Studio Company Limited with 1,000,000+ downloads (about 3.3M estimated). +22 installs in the last 7 days. Rated 4.2 from 16K ratings. Released Dec 18, 2014. Install growth, rank history, SDKs and ad networks.
From the store listing: “Run, jump, and deliver the mail in a colorful 2D platform adventure.”