If you want to gain strong combat effectiveness here, you can only obtain some powerful equipment and other methods through your own operations. If you want to know what the crazy-brained old man Wangqiaodong does to improve his combat effectiveness and make himself stronger, then follow the editor of Sourcecode.com and take a look at this guide. I believe I can give you the answer.
1. First improve the dining table on the right, as well as the food on the table and the nearby chairs.
2. Next, the fish for the cats is turned into canned food, and then the ground under the feet is improved into a wooden floor.
3. Cover the old man on the left with the cardboard box to turn it into a quilt, a bed, a set of clothes, and then a wall.
4. Turn it into a house, improve the fire, draw the quilt on the right and give clothes to the old man on the right.
5. Move grandma to sit on a chair, and finally turn the wheelchair outside the door into a car.
6. Then the mice on the ground turn into meat skewers, and the cat turns into a fat cat after eating canned food.