(Open the review to see more Formatting, which makes this review look a lot less messy)

I've had this game sitting on my phone for almost a year now, and I've been enjoying it quite a bit, so to see it finally on Steam is great! Though I am happy that the game transfered my Level, Characters, Items, etc. it was a bit dissapointing that it didn't transfer all of my purchased DLC (Had the "Just As Planned DLC Pack" purchased on my phone), although it is completely understandable as to why it cannot allow us to transfer DLC.

So after a few minutes of blowing money, I've repurchased the game with all of the DLC at its Launch Day.

• Muse Dash is a Casual, Colorful 2D Side-Scroller Rhythm Game developed by PeroPeroGames and Published by X.D. Network Inc.
  
• I say casual because this game has a relatively easy learning curve compared to other Rhythm Games on Steam right now, such as Groove Coaster, MUSYNX etc. which means that this game is VERY easy to get into, no matter if you're an Experienced Rhythm Game Player or not.
  
• The game allows you to take control of 3 Different Characters named Rin, Buro and Marija, along with 11 Costumes (One of which being Steam Exclusive, "The Girl In Black Marija"), which have their own unique perks and buffs.
  
• The game also allows you to pick Special Helper Pets on your side called "Elfins". These pets grant you special buffs and perks, just like each Character, but a lot smaller.
  
• The base game has exactly 40 Base Game Songs (as of writing this on the 20th of June 2019) and 78 DLC Songs from Popular Japanese Music Artists, such as EBIMAYO, Sakuzyo, Morimori Atsushi, xi, and more!
  
• The game has a built-in Achievement System that grants you an EXP Bonus for every Achievement that you achieve, helping you level up and progress in the game.
  
• Leveling up in this game gives you items that help you continuosly unlock Playable Characters, Elfins, and Artwork in the game through collectibles. Achieve enough of a specific Collectible, and the specific Character that the Item belongs to will be unlocked!
  (As far as I know, Items aren't randomized in the game, so you'll have to hit a certain Level to unlock the specific Character that you want). Once you have unlocked all of the Characters, Elfins and Artwork, the game will not reward you for anything after leveling up any further.

• The game currently has no Steam Achievements, nor Trading Cards.
  
• The game has a few misspelling and translation errors, but nothing too major that would ruin the experience of the game in any way.
  
• When Alt+Tabbing and Tabbing back into the game before a song starts, the game pauses itself after hitting your binded keys a few times for Attacking and Jumping.

The game has..:

• A Very Cute, Colorful and Flashy Artstyle!
  
• Incredibly Satisfying Sound Effects that feel very responsive when hitting.
  
• Very Good Music, along with very wide music genre variety.
  
• Has Music from well known artists in Japan!
  
• The Base Game is Only 3,49€ (2,79€ When On Sale) with 40 Standalone Songs and a FREE DLC Pack called "Budget Is Burning", which you get after achieving Level 30!
  
• The Game has Absolutely Stellar Unique Voice Acting for every single Character, including their Outfits, with Special Interactions!
  
• The Game offers Difficulties ranging from Casual to Incredibly Complex and Difficult, so it's Both Suitable for Casual Players and Seasoned Rhythm Game Players.
  
• It's completely playable with a Keyboard or Controller!
  
• The Game has its Music Library constantly expanded for Free with every Update, even in Standalone!
  
• The 29,99€ DLC (23,99€ On Sale) currently has 72 Unique Songs, some of which having their own Unique Background Themes. It EVEN gets Updated Monthly with 6 New Songs, ALL FOR FREE once you purchase the DLC, with even more songs to come in the future!

I could list a lot more, but that's just about all of the important stuff that I think covers the game.
I love the game, and again, I am VERY glad that it's finally on Steam!
If you're considering to buy this game, PLEASE, do not wait, and just do it!