The word texas is also a noun meaning the structure containing the pilothouse and officers' quarters on a steamboat (for folks complaining it is a proper noun). The game is obviously using the dictionary at dictionary.com so if you have questions about what it will accept, look there.
Get to the point where you can upgrade a building. Get enough cash to build a new building. Select the new building to build, but don't select the location. Upgrade a building. Now select the build location. You can build while going negative.
@ Ph34r_F4ct0r I know that if you do the other modes on the map you will. I believe you also get the XP if you find amulets, etc. I'm not sure if you get the XP just for repeating a mode on a map and getting a higher XP bonus.
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