So I have a HDMI modded N64 and it works great. However occasionally the bottom of screen for basically every game might occasionally quickly flash for like half a second with a little glitchy bit. However, I just got some new games recently and its worse for two of them. Star Fox and Beetle Adventure Racing. Star Fox is pretty bad as shown here. I have cleaned the cartridge pins for both games. Beetle is far worse than Star Fox is however. Now when a game isn't put in properly, it just shows this error glitchy screen. My best assumption is the problem is the cartridge reader itself, but that doesn't explain the inconsistency between games. Any ideas to why this is happening would be greatly appreciated.