Creating an effective boss rush mode in arcade games requires careful planning and execution to ensure player engagement and satisfaction. Here are some best practices to consider:

1. Pacing and Variety: Space out boss encounters to avoid overwhelming players. Introduce unique mechanics or themes for each boss to keep the experience fresh.

2. Progressive Difficulty: Start with easier bosses and gradually increase difficulty. This helps players build skills and confidence before facing tougher challenges.

3. Rewards and Incentives: Offer meaningful rewards, such as unlockable content or power-ups, to motivate players to complete the mode.

4. Balanced Design: Ensure bosses are challenging but fair. Avoid cheap tactics like excessive health or unavoidable attacks, which can frustrate players.

5. Visual and Audio Feedback: Use distinct visuals and sound cues to signal boss phases or attacks, enhancing immersion and readability.

By following these practices, developers can create boss rush modes that are both thrilling and rewarding, keeping players coming back for more.