These tiers were discarded by the community due to either their non-existent use or absurd concepts. Other pages may still consider these as active tiers.
Letter[]
A Postman method variant that uses VBScript instead of Windows Batch Scripting to load a customized M.U.G.E.N engine initialization. As it works in the same way as Postman, it was merged into said tier. VBScript was additionally deprecated by Microsoft in October 2023.
Receiver[]
A coding method that involves the use of modified M.U.G.E.N. engine builds to make cheap characters, including the author's, balanced throughout the context of character selection and match. As it's effectively the same as the Omed method, it was merged into said tier.
Whale[]
A tier that refers to characters who use the web browser to display a video of them defeating the enemy. Its primary concept was as follows: "The weakest variant loads a video with the character beating their opponents, while the strongest one forces the web browser to download the character's special M.U.G.E.N. engine build before executing it on the user's computer.
Nowadays, it is regarded as a discarded tier in the cheap community, as the use of exploits that allows control of a web browser at the author's will is quite a volatile subject, namely due to causing other users' security to be explicitly compromised.
Most recent characters that do something similar involve the use of internal engine exploits, such as that of SuperNulls or HyperNulls, to generally load videos to troll the user or for fun's sake.