The Portable Wall is an Vehicle-Metal-Ignorable type vehicle/defense introduced in the 2.7 Patch. Like the other ignorable vehicle/defense introduced in the same patch, the Sandbag Pile, it does not possess any weapons or attack methods.
The Portable Wall costs roughly the same as a Heavy Tank, which may seem expensive, but it has a whopping 600 and 125. Unfortunately, the Portable Wall has no noticeable Armor or HP Defenses, so the 725 combined HP will be quickly worn down. However, it does not take the DoT aspect of and , somewhat compensating for the lack of any resistances.
Because of having much more HP than Armor, but more total health points than a Super Tank, it is rather effective at tanking damage from the Mystery Troops because very little of the health is ignored by the laser's penetrating power. At later levels (Level 66+) players could replace it with the Portable Electric Fence, since it has resistances and the option to attack. A Rank 6 Portable Wall has the second highest SP reward of any basic unit, ranking just 4 points after the Portable Electric Fence (not including Boss Strike rewards or Limited Time units) making it good for trade, but also has a higher healing cost than Wimps or Sandbag Piles.
Only three Portable Walls can be deployed at once.
Statistics[]
Portable Wall Ranks
1
2
3
4
5
6
SP
N/A
4,430
9,940
21,600
48,375
103,675
HP
600
660 (+60)
720 (+60)
780 (+60)
840 (+60)
900 (+60)
Armor
125
140 (+15)
150 (+10)
165 (+15)
175 (+10)
190 (+15)
Total
725
800 (+75)
870 (+70)
945 (+75)
1015 (+70)
1090 (+75)
Bravery
0
0
0
0
0
5 (+5)
Defense
15
20 (+5)
25 (+5)
30 (+5)
35 (+5)
40 (+5)
Dodge
5
10 (+5)
15 (+5)
20 (+5)
25 (+5)
30 (+5)
Promotion Cost
N/A
4h 15,056 5,200
12h 42,560 5,917
1d 105,920 7,312 11
2d 261,136 8,842 29
2d 376,740 10,530 7
Promotion Reward
N/A
1,600
2,700
4,000
5,500
7,200
PvP Unit Value
41
46
50
56
60
65
SP Reward
164
184
200
224
240
260
Gold Reward
820
920
1000
1120
1200
1300
Cost[]
Training Cost — Vehicle Factory
Level
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Time
15h 36m
15h
14h 24m
13h 48m
13h 12m
12h 36m
12h
11h 24m
10h 48m
9h 36m
8h 24m
7h 12m
6h
4h 48m
3h 36m
Gold
35,000
35,000
35,000
35,000
35,000
35,000
35,000
35,000
35,000
33,250
31,500
29,750
28,000
26,250
24,500
Steel
3,000
3,000
3,000
3,000
3,000
3,000
3,000
3,000
3,000
2,850
2,700
2,550
2,400
2,250
2,100
Oil
3,000
3,000
3,000
3,000
3,000
3,000
3,000
3,000
3,000
2,850
2,700
2,550
2,400
2,250
2,100
Gears
20
20
20
20
20
20
20
20
20
19
18
17
16
15
14
Healing Cost
Level
1
2
3
4
5
6
7
8
9
10
Time
3h
3h
3h
3h
3h
2h 42m
2h 24m
2h 6m
1h 48m
1h 12m
Gold
26,250
21,875
17,500
15,750
14,000
12,250
11,375
10,500
9,625
8,750
Steel
2,250
1,875
1,500
1,350
1,200
1,050
975
900
825
750
Oil
2,250
1,875
1,500
1,350
1,200
1,050
975
900
825
750
Gears
6
5
4
4
4
3
3
3
3
2
Healing Cost
Level
1
2
3
4
5
6
7
8
9
10
Time
2h 42m
2h 42m
2h 42m
2h 42m
2h 42m
2h 24m
2h 6m
1h 48m
1h 30m
54m
Gold
22,750
18,375
14,000
12,250
10,500
8,750
7,875
7,000
6,125
5,250
Steel
1,950
1,575
1,200
1,050
900
750
675
600
525
450
Oil
1,950
1,575
1,200
1,050
900
750
675
600
525
450
Gears
6
5
4
3
3
2
2
2
2
2
Trivia[]
To build a Portable Wall, the player only needs their Vehicle Factory to be Level 1.
This is the first player-trainable unit that health can go past 1,000 HP total at higher ranks.
When viewed in the Vehicle Factory, the Portable Wall has the "Light Infantry" icon in the top left corner:
Explosive
Fire
Freeze
Plague
Poison
Shatter
Stun
900
190
725 combined HP will be quickly worn down. However, it does not take the DoT aspect of 
SP
Bravery
Defense
Dodge
4h
15,056
5,200
11
7
1,600
Oil
HP total at higher ranks.
