Shadow Generations Stages

What other stages do you think should've made the cut? I might sound greedy but 6 zones were too few...if it had 9 like Sonic Gens did it would've been ideal ESPECIALLY if it's stages from Shadow's original 2005 game. Cryptic Castle and Sky Troops are a MUST imo just imagine the remastered music and the environment...In addition, an extra Sonic Heroes stage is necessary due to how diverse and charming that game is zone wise despite its disgustingly slippery controls. Frog Forest would've been my pick. Tell me about yours I'm very curious to hear you all out :)

What other stages do you think should've made the cut? I might sound greedy but 6 zones were too few...if it had 9 like Sonic Gens did it would've been ideal ESPECIALLY if it's stages from Shadow's original 2005 game. Cryptic Castle and Sky Troops are a MUST imo just imagine the remastered music and the environment...In addition, an extra Sonic Heroes stage is necessary due to how diverse and charming that game is zone wise despite its disgustingly slippery controls. Frog Forest would've been my pick. Tell me about yours I'm very curious to hear you all out :)