Coffee Rush is a weird sort of mash up between a time management game and a match-three game. Your customers come up to the counter and request a specific drink. In order to make the drink, you need to collect a certain amount of each ingredient. The ingredients are collected by matching three like items in a row. Once all of the ingredients for a drink are collected, you click on the drink to serve it to the customer. I found this game to be extremely annoying. Mostly because there are certain ingredients that are impossible to collect, which results in ticked off customers. If there were more opportunities to match three of an item, it wouldn't be so difficult. For example, the sugar ingredient pops up all the time so you can have tons of sugar. However, the whipped cream item doesn't pop up very often so if your customer wants something with whipped cream, they will have to wait a long time for three of that item to come together.
This is definitely an interesting concept for a game. I wouldn't mind seeing more of these sorts of mash ups between different types of genre. However, the developers need to make the games fair. If you're going to force us into creating recipes with specific amounts of specific ingredients, give us the tools to make it happen. Don't let the player flap in the wind, hoping that what they need pops up now before the customer storms off.