When Kyle Katarn plays KotOR 1 and he is on his way to the Star Forge the device on the unknown world does not attempt to pull down and crash his ship out of fear of what would happen to it if it even attempted to make Kyle Katarn crash.
Kyle Katarn can get pass the Sith guarding the elevator to the Lower City without Sith Uniforms or the Sith Papers.
When Kyle Katarn plays KotOR 1 he doesn't have to undergo three tests to join the Jedi order because Kyle Katarn was always worthy from the beginning. Also Kyle Katarn is instantly named a master and becomes the head of the entire council before he even arrives on Dantooine.
Kyle Katarn charged up the loading ramps of Bastila, Sarna, Duan, Hurka, Ceeiia, and Isa without mods. That beard......
When Kyle Katarn plays KotOR 1 Bastila never falls to the dark side out of loyalty to Kyle Katarn.
Kyle Katarn revisited Taris after it was destroyed by Darth Malak in KotOR 1 without mods or cheats. Kyle Katarn can also revisit Dantooine in the same way.
When Kyle Katarn plays KotOR 1 once he defeats Darth Malak the game doesn't end it simply continues with the story of TSL.