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Aliases
psigoo
moc.liamtoh|oogisp#moc.liamtoh|oogisp
Site URL
http://psigoo.host.sk/
Ticalc.org URL
http://www.ticalc.org/archives/files/authors/51/5109.html
Location
United States
Years Active
2000 to 2002
Affiliations
None
Michael Holt (psigoo) was an assembly programmer for the TI-89 and TI-92+ graphing calculators.
Person Significance

(Screenshot of TISS)
He released several high-quality games including Evasive (a side-scrolling greyscale shoot-em-up), Rodent's Revenge, SkiFree, Lode Run: Monks' Wrath, and Worm (a greyscale clone of the classic nibbles or snake), as well as a high-quality spreadsheet program called TISS. He also developed a full-featured greyscale version of Duke Nukem for the TI-89 with Malcolm Smith and Stephan Effelsberg, which was featured in a ticalc.org news article.
Person Contributions
- List of their programs and games
- Include a screenshot for some of their best games/programs
Person Milestones
- List of their important milestones (date joined TI community, important programs, etc.)
Site URLs
- http://calc.psigoo.com
- http://psigoo.host.sk/