this is what i plan to do for the remainder of chapter 2 and all of chapter 3 of my SSE:
kirby, human kirby, snake, ilyana, ZSS, dr mario and dexter find their way to the beach encountering scourge, superstar helpers, bowser, dimentio, cortex and tiny when they get there. there will be a foreshadowing aura of subspace energy around the area.
guntz's group will defeat hyper ridley zilla and ashencroft before taking the weave of size and riding off. they soon encounter metaknight and wheelie as they pass through dreamland. they aproach the beach.
as soon as they land on the beach, the energy from 5 weaves starts to come together.
we go to wario, still flying from the explosion and his bike falls before he does, crashing into wolf's wolfen. wolf is removed from the reckage by jigglypuff, and the two go through mount moon and find an uncounscious sonic on the ground
back to the beach where the 5 weaves(speed,size,minions,portals, and energy) start circling above the group. being powerhungry, dimentio and scourge run after it, scourge winning. he then becomes subspace scourge and creates a large orb of subspace. that ends chapter 2.
chapter 3 is simple, having 3 levels and one boss, but its not easy. the first level features the beach group entering and pushing through the outer shell of the subspace orb. this allows you to pick eight of the seventeen characters at your disposale (kirby, human kirby, snake, ZSS, ilyana, dr mario, dexter, bowser, dimentio, cortex and tiny, superstar helpers, guntz, nack, mach rider, captain falcon, whellie and metaknight) because the level is designed to last 1 and a half or 2 hours for normal players, having a save point every 5 main rooms. we then have a quick filler level level featuring bill, luigi, ike and marth., before another harder 2 hour level in the subspace. you then fight subspace scourge with a pool of 8-9 characters out of the seventeen. subspace scourge will NOT be a tabuu clone and i will hope that he gets 15(!) attacks.
if someone who is good at bosses, who i trust 100%, and who has a relative amount of freetime (which narrows it down to lenus, warlord and a 50% chance of spayd or krool) wants to make subspace scourge, i will PM them my ideas.