Who knew abt tenna b4 ch 3&4? of deltarune

The reason i ask is, i got deltarune on my switch when it came out-but i never played it instead i played sonic, and as the sonic movies came out i slowly started 2 get into mods cause i like adding characters and bosses 2 my sonic games it makes it cooler idek (>＿< *) and i seen in the sonic hacking contest a big hype release 4 a tenna boss mod but this waz WAY b4 ch 3&4 dropped, n tenna looks all different, and i was rlly curious on who tenna was but i couldnt find ANYTHING abt him other than that he was from deltarune, but no1 evr showed him IN deltarune so i wuz so confused but eventually gave up on trying 2 learn abt him. >>

But now that ch 3&4 r out im confused cause y there was a tenna mod in the first place (•ૅ A• )? I only recently started getting into deltarune so idrk how many people knew about tenna b4 he was introduced, but it had 2 have been alot 4 a mod 2 be made of him, i also hear alot of ppl talking abt how no1 guessed his design so mayb he wuz talked abt but never shown so maybe that explains y there wasnt any vids of him in the game but idk, really odd i found out abt tennas existence before his official debut thru modding classic sonic games xD