To level up your superhero, complete missions and defeat enemies. Each mission provides experience points (XP) that contribute to your hero's level. Focus on higher-difficulty missions for maximum XP gains.

You can adopt various combat strategies such as ranged attacks, melee combos, or defensive maneuvers. Experiment with different hero abilities to find what works best against specific enemies.

Unlock new abilities by progressing through the game's storyline or by reaching specific level milestones. Some abilities also require collecting special items or completing certain challenges.

To team up with friends, you need to invite them to join your game lobby. Once in your lobby, you can select missions together and strategize your gameplay for cooperative missions. Follow these steps:
1. Go to the main menu.
2. Select 'Multiplayer' or 'Lobby'.
3. Send invites to your friends.
4. Wait for them to join your lobby.

Improving equipment and gear requires resources found throughout the game. You can upgrade them by accessing the inventory menu and selecting the gear you wish to enhance. Follow these steps:
1. Open your inventory.
2. Select the gear you want to upgrade.
3. Choose the upgrade option.
4. Spend the required resources to complete the upgrade.