Mercury - Demo version of a new shoot-em-up for the ti83

Current version: 0.70

General Description

ZMercury is an advanced shoot-em-up game for the TI-83. This game has very smooth gameplay (synchronized at 25 frames per second) with many objects onscreen and parallax scrolling.

ZMercury is supplied with full source code. The program is in public domain so it may be copied or modified without any restrictions.

The actual gameplay is much smoother than the animated GIF above shows, since the image was made by sampling the screen only a few times per second.

Download

Download the full archive here. The archive includes the full source code (both versions are built from the same source) and documentation in addition to the executable. This release should work with all ROM versions.

• Download it now!
• Archive size: 53817 bytes
• Size on calculator: 6250 bytes The TI-83 version require 1664 bytes of free RAM to run.

Complete (mostly) feature list

Here is a list of the major features of this game. It is by no means complete, but covers many of the most important ones.

• Smooth gampelay, sychronized at 25 frames per second
• Parallax scrolling backgrounds
• Multiple different types of enemies
• High score table keeping top 7 scores
• Power-ups to upgrade your ship, including two additional types of weapons
• You can save the game at any point
• The TI-83 version uses only 6250 bytes of memory
• Full source code included
• Compatible with all known ROM versions
• Entire program can be copied and modified without restrictions

Known bugs

These are no known bugs (at the time of release).

Cheat codes

If you really think you need to cheat, shame on you.