Extracting the game should have created a directory titled "Temp". The error shows when this folder isn't present. Create a folder called "Temp" in the game's folder and it should work.
Initially, I was only going to have the scenes display as an illustration with text, but moving them around was requested. The doggystyle pose handler is only intended as a catchall for Pokemon. Some have their own proper animations. Currently, the end of the Cyndaquil line have some animations of their own and I plan to add more in the future. Other Pokemon ( particularly noteworthy ones ) will have their own dedicated scenes either with the player characters or some others. Animation isn't particularly difficult, but it's pretty tedious and time consuming. I'll be able to dedicate updates solely for adding illustrations and animation content after the main game is more finished.