Use mouse/space/tap to jump, and up arrow/upgrade button to upgrade
I got inspiration from a game called "Buddy Toss", and I also borrowed some scripts from Griffpatch's background scrolling tutorial. V1.2: bugfixes, changed basic stars texture, added a new section past 1 quintillion V1.1.2: fixed a laughably simple layering oversight V1.1.1: fixed negative money bug V1.1: fixed a layering glitch, improved upgrade UI, and added a new section between 5 million and 40 billion.
