I haven't played this yet, but from the Steam reviews:
Exploration in this game is done in a classic side-scrolling platform fashion: jumps have large air control capabilities, and in time double-jumps, dashes and other movement skill are unlocked. Many secret areas, concealed behind apparent map limits, are abundant and almost always lead to some additional key, piece of equipment, or just a lot of gold coins: many of them need abilities found only later on to be accessed, promoting "good" backtracking. The global map is divided into several sectors composed by a large number of rooms: before having the map layout players will need to find the actual area map, each hidden in that particular area, somewhere. There is one teleport in each sector, allowing fast travel from one to another once unlocked.
https://steamcommunity.com/id/tho545454/recommended/699670/Also, see the map:
https://steamuserimages-a.akamaihd.net/ugc/94734700570585776...Clearly Metroidvania