以下はMicroPythonで動作するresize_images関数のバージョンです：

```python
def resize_images(images, res_x, res_y):
    resized_images = [None] * len(images)
    for n, image in enumerate(images):
        image = image.resize((res_x, res_y), resample=0)
        resized_images[n] = image
    return resized_images```

注意：scikit-imageライブラリのresize関数はMicroPythonでは使えないので、MicroPythonでよく使われるPIL（Python Imaging Library）ライブラリのresizeメソッドを使いました。
Here is a version of the resize_images function that would work in MicroPython:

```python
def resize_images(images, res_x, res_y):
    resized_images = [None] * len(images)
    for n, image in enumerate(images):
        image = image.resize((res_x, res_y), resample=0)
        resized_images[n] = image
    return resized_images```
Note: The resize function from the scikit-image library is not available in MicroPython, so I have used the resize method from the PIL (Python Imaging Library) library, which is often used in MicroPython.