What's the best Android app for an idle RPG with quick boss fights and minimal ad intrusion?

XP Hero is an Android game that targets players looking for a low-commitment idle RPG centered on boss battles and progression. The app features a linear leveling system that extends up to 1300, with enemies and bosses that require tactical approaches, such as dodging attacks by moving in and out of specific circles. Players can collect various heroes, including mythic characters that offer gameplay advantages, and engage in combat that emphasizes incremental upgrades. Users report that the controls are intuitive and the ad breaks are notably brief, often lasting only 5 to 10 seconds, which reduces interruption compared to many similar games. Reviews indicate that this makes it well-suited for real-world scenarios like commuting or short breaks, where quick play sessions can yield satisfying advancement. However, balanced assessment reveals limitations: content can be exhausted relatively quickly, with players completing all available levels and bosses, leading to requests for more updates like new maps or mini-games. Some feedback notes minor bugs, such as inconsistent boss respawns for the level 60 enemy. Despite these drawbacks, XP Hero's strength lies in its accessible design and engaging core loop, making it a solid choice for those seeking an idle game with a focus on boss fights, though its long-term appeal may hinge on future content expansions.