Units in Super Famicom Wars and Game Boy Wars 3 are capable of gaining Experience just like in RPGs such as Fire Emblem. Of course, since units generally don't carry over between battles, neither does the Experience accumulated for each one.
Leveling up can be shut off in Super Famicom Wars, though only at the start of a file. In Game Boy Wars 3, Leveling Up is always on.
Super Famicom Wars
Units can gain Experience only by dealing damage, leaving weaponless units, like the Supply Truck, out of luck. The Experience gained is 1 for every sub-HP of damage dealt (up to 100), multiplied by the defending unit's Experience Value (listed on their page).
Each of Yamamoto's units starts with 1001 Experience.
Game Boy Wars 3
Game Boy Wars 3 has plenty of ways for units to gain Experience, although hacking is the only way to have an idea of how much experience a unit has without a guide.
The first is combat. Units gain Experience by:
- Just participating - 1
- Being the target of a ranged attack - 1
- Dealing damage - 1 for every HP of damage done
- Attacking up-close - 1
- Getting hit by a counterattack - 1
- Wiping out the enemy unit - 1, becomes 2 plus enemy unit's old HP if attacking up-close and the enemy unit's base Attack with its used weapon was higher
In addition, all Special Commands except for the Work Car's Pave command give off 1 Experience per HP. Also, moving with at least one loaded unit gives off 1 Experience for each space the unit moves on its own.
In Super Famicom Wars, the following amounts of Experience are needed for the respective levels:
- 1 dot: 500
- 2 dots: 1000
- 3 dots: 2000
- Star: 4000
Progress to the next level is indicated by a row of 20 stars.
In Game Boy Wars 3, 100 Experience is required for each Rank Up from D to each one in order: C, B, A, and S. Gain rates don't even slow down. However, there is no way to tell how much progress a unit has made to the next level up without hacking.
Level ups provide boosts to Attack and Defense.
In Super Famicom Wars, the boost to each is a whopping 20% for each level up, but Defense is only boosted on the third and fourth level ups.
In Game Boy Wars 3, Total Attack and Total Defense are boosted by 10% and 5% respectively for each level up. The Total Defense boosts provide a set amount of reduced damage affected by the unit's HP.