TI-84+ SE OS 2.41 with Portal: Prelude installed and a complete 38-level save.

Steps to begin:

1. Download >Wabbitemu< or suitable emulator.
2. If you wish to install the game yourself onto your own physical Graphing Calculator, check the >README< file on the game's >download page<. Otherwise, continue to step 3.
3. Download the attached file below.
4. Load ROM in emulator (Wabbitemu should autoprompt, else File > Open > select ROM). Maximize window for full calculator and/or open Detached LCD screen via View menu.
5. Open from the APPS menu (purple text key) on calculator.
6. Refer to official README in step 2, as well as the >controls guide<, to learn to play.