Spam is a twin stick shooter in which the player takes control of a spam detector system and must defeat waves of spam emails. The player would be able to navigate around the "filter", a large open space which traps suspicious emails. Waves of these emails would come towards them, and they must shoot the spam enough to wear them down then trap the email by walking over it. This would sent the email to a spam folder, never to be seen again. However, ever so often a regular email would show up in the filter. The player would be required to save these emails, done by simply walking over them. Damaging these regular emails would result in them slowly corrupting, turning into even stronger spam emails. Every so often a boss spam email would spawn, which would have much higher health and therefore take longer to kill. Defeating this boss email would have a different result depending on what type of boss it was. Some would spawn multiple little spam emails, or others could result in a large explosion.

Image from http://knowyourmeme.com/photos/975939-spam retrieved 6/9/2016