By consulting the *<a href="https://www.u4gm.com/toilet-to....wer-defence-items\&q Toilet Tower Defence Items</a> tier list*, players can identify which units are worth investing in based on their power and cost. High-tier units typically offer the best defenses but may require more resources to unlock. Combining high-tier units with lower-tier ones can create a cost-effective strategy, allowing players to cover all areas effectively.111 😮