If you have a handheld device or use an emulator like PPSSPP (which focuses on PSP), you won't find native Senran Kagura ISOs. However, the (emulated via Vita3K ) hosts the most iconic early entries:

(2011): The original 3DS title that introduced the Hanzo National Academy girls.

. If you are looking for handheld Senran Kagura experiences, you are likely looking for the or Nintendo 3DS titles. The Origins: Why the Confusion?