These guides provide step-by-step instructions for setting up the NoNpDrm plugin and installing game backups on your PS Vita:
Which of those would you like?
Street Fighter X Tekken for the PS Vita is widely considered one of the most impressive fighting game ports on the handheld. If you are looking to play it using a street fighter x tekken ps vita rom nonpdrm new
The Vita version is actually more "complete" than the initial console release: Expanded Roster street fighter x tekken ps vita rom nonpdrm new