I hope these files work, for 3.50 (can also work on 3.36, but I suggest using a build made for that firmware).
readme is included.

direct links:
Ape Escape: On The Loose
https://googledrive.com/host/0BwYVUA7ansC5ZXNfeW5tMFFudUU/FW350_APE_US_ARK_installer.zip
Pool Hall Pro
https://googledrive.com/host/0BwYVUA7ansC5ZXNfeW5tMFFudUU/FW350_PHP_US_ARK_installer.zip
Puzzle Scape
https://googledrive.com/host/0BwYVUA7ansC5ZXNfeW5tMFFudUU/FW350_PuzzleScape_EU_ARK_installer.zip
Rockman Rockman
https://googledrive.com/host/0BwYVUA7ansC5ZXNfeW5tMFFudUU/FW350_Rockman_JP_ARK_installer.zip
World of Pool
https://googledrive.com/host/0BwYVUA7ansC5ZXNfeW5tMFFudUU/FW350_WOP_EU_ARK_installer.zip

indirect links:
Ape Escape: On The Loose
https://drive.google.com/file/d/0BwYVUA7ansC5TzBVT0pNZHFVVDA/view?usp=sharing
Pool Hall Pro
https://drive.google.com/file/d/0BwYVUA7ansC5NkFacEZxZWVmdXM/view?usp=sharing
Puzzle Scape
https://drive.google.com/file/d/0BwYVUA7ansC5VUcxMDVUQlZ0MG8/view?usp=sharing
Rockman Rockman
https://drive.google.com/file/d/0BwYVUA7ansC5WHJmR3A1MHB6YnM/view?usp=sharing
World of Pool
https://drive.google.com/file/d/0BwYVUA7ansC5bEVOLUk1bUxKc28/view?usp=sharing