If you are using the on an Android phone or PC, you can use either the EBOOT file or a standard PS1 ISO.
Any file you download should be scanned with updated antivirus software. Malicious actors embed malware in fake EBOOT.PBP files. Tekken 3 Psp File Download
On mobile, you can upscale the graphics to 2x or 3x resolution for a sharper look than the original hardware. Key Features of Tekken 3 TEKKEN 3 IS BACK...and it's better than ever?! If you are using the on an Android