mSpam tap/click/space when the virus comes, or just ignore. If you don't do it in time though, Something will happen. If you do though, you lose time/score!
Error. Code not found. To survive Cat, spam click/tap him. For Gobo, catch him. For Pico, close all the pop-ups. For Giga, press space when she's red. For Nano, click/tap the mute button. For Tera, find the REAL her. (All the fakes are lighter.) You can't survive the true glitch. It makes you unable to play until you enter the right code. It also deletes all your time/score and progress. Press green flag in time to stop the True Glitch.