777TOWNパチスロ北斗の拳 天昇 is a free iPhone game developed by Sammy Networks Co. Ltd. It is a slot machine game based on the popular manga and anime series Fist of the North Star. The game features an intense bonus round called "昇舞の刻" which progresses through stages of "強敵バトル準備中" and "強敵バトル". By winning a certain number of battles in the "強敵バトル," players can trigger the "真・天昇RUSH" mode.

The "真・天昇RUSH" mode in 777TOWNパチスロ北斗の拳 天昇 is an auto-stop type AT (Artificial Time) mode, eliminating the need for manual timing. Players can choose between two different modes: the completion-based "修羅モード" and the battle-based "世紀末モード." Each mode has different visual effects that suggest the level of excitement.

777TOWNパチスロ北斗の拳 天昇 is part of the 777TOWN mobile app, which offers unlimited play of various pachinko and slot machine games. However, to access unlimited play, users need to subscribe to the "遊び放題コース" for $11 per month. Without the subscription, the game limits players to 50 games or until they trigger a bonus round.

Please note that support for the game is available through the in-app contact form during weekdays from 10:00 to 19:00 (excluding weekends, holidays, and specific vacation periods).