When I reviewed Bubble Bobble Sugar Dungeons, I called it one of the more interesting risks TAITO has taken with the series in years, turning Bub’s dungeon crawls into a full roguelike loop, and I still think that holds up. It worked far better than it had any right to, and now, timed to the franchise’s 40th anniversary, TAITO and Arc System Works have gone back in with BUBBLE BOBBLE Sugar Dungeons Boosted, a free update that lands on Switch alongside PS5 and Steam. To be clear, this is a free update and not paid DLC, so there is no additional cost of entry here if you already own the game. Free content updates for a game I already liked quite a bit are always welcome, and I found Boosted adds enough that it is worth revisiting even if you already burned through your first few runs.
The headline addition is a new giant Castle stage, and it is a genuine change of pace from the dungeons I had already gotten used to. Rather than the run-based layouts Sugar Dungeons built its identity on, the Castle is maze-like, made up of interconnected rooms that gradually reveal themselves as you push further in. I found it to be a smart way to give longtime players something that does not just feel like more of the same treasure-hunting loop, while still asking me to use everything I had learned about bubble-trapping and crafting to get through it.
The other big system added is Bob’s Bonus Gates, and it might end up being the more important addition long term. Bub’s twin brother Bob now shows up in the dungeons, and passing through Bob’s Gate lets you choose between three destinations depending on what your run actually needs. The Item Room is exactly what it sounds like, packed with treasure chests and useful pickups. The Combo Room asks you to mow through a wave of enemies to rack up combos, which conveniently also resets the Baron Timer, buying you breathing room before the Baron comes chasing after you again. The Skip Gate does what it says and lets you jump ahead several floors at once. Of course, it is a simple choice on paper, but I found it added a real layer of run to run decision making that the base game did not quite have, letting me lean into a greedy run or a fast one depending on how the dungeon was treating me.
Item variety and drop rates have also been significantly increased, and this might be the change that has the biggest impact on actually playing BUBBLE BOBBLE Sugar Dungeons Boosted. Invincibility items are more common now, including the returning Chack’n Cake, which lets you flatten enemies just by running into them for a short window. New items like the x2 Gummy, which doubles the materials you pull from treasure chests, and Gold Sugarees, which doubles the currency you earn, make the crafting and upgrade systems that I already thought were one of the best parts of Sugar Dungeons feel less like a grind and more like a reward loop that keeps pace with you. This being said, items picked up in the Item Room and Combo Room are tied to that specific run and disappear once you head back to the lobby, so there is still a real decision behind whether to lean on them immediately or hold back.
None of this changes what Bubble Bobble Sugar Dungeons fundamentally is, and that is fine, because what it fundamentally is remains a genuinely clever reinvention of the Bubble Bobble formula. Boosted is not trying to fix something that was broken, it is building on a foundation that already worked, and I think it does that well. The Castle stage gives longtime players a real reason to jump back in, and Bob’s Bonus Gates and the item overhaul make individual runs feel snappier and more varied without changing the core bubble popping, treasure hunting loop that made the original release worth recommending in the first place.
That said, Boosted does not do anything about the one complaint I still hear the most, which is the lack of co-op in the main Sugar Dungeons mode. Bubble Symphony is still bundled in and still the best place to get your two-player Bubble Bobble fix, and that has not changed here. If that absence was a deal breaker for you before, it still will be now.
Ultimately, BUBBLE BOBBLE Sugar Dungeons Boosted is exactly what I want out of a free anniversary update, a genuine reason to come back rather than a token gesture. The Castle stage alone would have been a solid addition, and pairing it with Bob’s Bonus Gates and a meaningfully better item economy makes this feel like a more complete version of a game I already liked a lot. If you bounced off Bubble Bobble Sugar Dungeons before, Boosted probably will not change your mind, but if you were already on board like I was, this is a very easy update to recommend checking out.