Lie before launch about what features the game will/won’t include to dodge bad reviews and increase sales, add microtransaccions for costumes of older tekkens, add in game store with a paid currency that forces you to add more money that the exact amount you want to spend, mtx with limited uses, in game adds masked as free customization items (chipotle brand), add characters from older tekkens as DLC (Eddy, Lydia, Heihachi…), add a paid battle pass separated of the season pass that gives you customization items, exclude DLC content from the Season Pass/Ultimate Edition that was supossedly to include it (Heihachi scenary).
And who knows what more to come.
They did the same on Tekken 7 iirc.